Th/Eu abundance ratio of red giants in the Kepler field

Open Access

Fig. 2

CN line used to constrain the strength of CN absorption. The solid blue line indicates the synthetic spectrum assuming [C/Fe] and [N/Fe] from Ryde et al. (2009), while the solid red line indicates our best-fit result (see Sect. 3.2). The dashed gray line indicates the synthetic spectrum without CN contribution.

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